SR Java Fullstack developer

mastercard

1. Sr. Java Full Stack Developer
2. Mastercard Arlington, Virginia. April 2023 to Present
3. Roles & Responsibilities:
4. Effectively utilized Jira to capture and report Agile metrics, such as velocity, burndown charts, and sprint goals, providing key performance indicators to stakeholders.
5. Experienced using Java features like lambda expressions, parallel operations, and multithreading to enhance the performance and efficiency of web applications, resulting in faster response times and improved user experiences.
6. Leveraged Angular 11 to create responsive and user-friendly web interfaces, contributing to increased customer engagement and satisfaction.
7. Collaborated with Angular 11 to build reusable components and services, streamlining the development of feature-rich and dynamic web applications, reducing development time.
8. Implemented Angular Material design components and styling to maintain a cohesive and visually appealing user interface across the application, aligning with Mastercard's brand guidelines
9. Integrated JavaScript frameworks and libraries like jQuery, Vue.js, and Redux to introduce interactivity and dynamic behavior to web pages, improving user engagement and application performance.
10. Designed and developed a batch processing system using Spring Batch, improving the efficient handling of large data sets and boosting application performance.
11. Implemented Spring Security to ensure secure data handling, protecting sensitive customer information and preventing unauthorized access.
12. Designed and implemented RESTful APIs using Spring Boot, facilitating efficient communication between different application components and enabling integration with third-party systems.
13.  Developed and maintained Microservices with Spring Boot, deploying them in Docker containers to ensure scalability, reliability, and resilience.
14. Implemented Apache Kafka to enable asynchronous communication between Microservices and application components, contributing to improved performance and scalability.
15. Developed and maintained Kafka producers and consumers using Spring Kafka, ensuring real-time data processing and efficient communication between components.
16. Managed and optimized PostgreSQL databases, fine-tuning SQL queries, and implementing indexing strategies for enhanced performance.
17. Developed Java applications using MongoDB NoSQL databases, optimizing data storage and retrieval, and implementing database replication strategies for improved scalability and availability.
18. Managed codebase changes with Bitbucket, collaborating with a team to ensure code consistency and quality through branch creation, merging, conflict resolution, and code reviews.
19. Containerized Java applications using Docker and managed container orchestration with Kubernetes, streamlining deployment and scaling for increased application efficiency and reliability.
20. Designed and implemented a CI/CD system with Jenkins in a Kubernetes environment, utilizing Kubernetes and Docker to automate application building, testing, and deployment.
21. Developed scalable and fault-tolerant Java applications using AWS services such as EC2, S3, and RDS, ensuring high availability and optimal performance.
22. Seamlessly integrated AWS Lambda functions with Java applications, ushering in a serverless computing paradigm and an event-driven architecture, resulting in cost savings by eliminating the need for constantly provisioned infrastructure and offering improved scalability.
23. Spearheaded the management and upkeep of AWS infrastructure by harnessing the power of CloudFormation and Terraform, effectively automating the deployment and configuration of resources, ensuring infrastructure consistency and efficiency.
25. Technologies Used: Java 1.8, Spring framework, NodeJS, Spring Boot, RESTful Webservices, AWS Infrastructure, Cloud formation template, Kafka, Docker, Angular framework, Bootstrap, Type script, HTML5, CSS3, JPA, Bitbucket, Jenkins, JSON, DB2, Gradle, JUnit, SonarQube, TDD, Mockito framework, Swagger, Postman, Jira.